Update bladeRF.c

Fix to add missing include on bladeRF.c
Merge pull request #30 from Comics/patch-1

Update bladeRF.c
CLI: Added missing bladerf_enable_module() implementation

This routine is used to enable/disable the RX/TX on the LMS,
and should be used instead of the gpio_* routines.

All calls that are not prefixed with bladerf_* will be removed
and replaced with more appropriate interfaces in the near future.
CLI: Typo fixes in comments from previous commit